MCQOPTIONS
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MCQOPTIONS
This section includes 83 Mcqs, each offering curated multiple-choice questions to sharpen your Geotechnical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The performance of a compaction equipment depends on _____________ |
| A. | Soil type |
| B. | Water type |
| C. | Particle size distribution |
| D. | All of the mentioned |
| Answer» E. | |
| 2. |
Which of the following type of vibrating unit used in a vibrator? |
| A. | Out-of balance weight type and Pulsating hydraulic type |
| B. | Piston hydraulic type |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Piston hydraulic type | |
| 3. |
The initial decrease of dry density at lower water content is exhibited in ____________ type of soil. |
| A. | Fine grained soil |
| B. | Black cotton soil |
| C. | Alluvial soil |
| D. | Cohesion soil |
| Answer» C. Alluvial soil | |
| 4. |
The force which is responsible for withholding of soil particles, of lower content is __________ |
| A. | Vander Waals force |
| B. | Electric force |
| C. | Frictional force |
| D. | Cationic linkage |
| Answer» C. Frictional force | |
| 5. |
Sheep-foot-rollers is most suitable for compacting ____________ |
| A. | Fine-grained soil |
| B. | Cohesive soil |
| C. | Cohesion-less soil |
| D. | Clay soil |
| Answer» C. Cohesion-less soil | |
| 6. |
Pneumatic tyred rollers are best suited for ____________ |
| A. | Cohesion-less sand |
| B. | Cohesive soils |
| C. | Cohesion-less gravels |
| D. | All of the mentioned |
| Answer» E. | |
| 7. |
The foot pressure in sheep foot rollers ranges from _____________ |
| A. | 800-350 kN/m² |
| B. | 800-3500 kN/m² |
| C. | 300-1500 kN/m² |
| D. | 350 kN/m² |
| Answer» C. 300-1500 kN/m² | |
| 8. |
The rolling equipment’s are of __________ types. |
| A. | 5 |
| B. | 4 |
| C. | 2 |
| D. | 3 |
| Answer» B. 4 | |
| 9. |
Which of the following factors affects compacted density? |
| A. | Water content and Type of compaction |
| B. | Degree of saturation |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Degree of saturation | |
| 10. |
The shear strength of compacted clays depends upon ____________ |
| A. | Dry density |
| B. | Water content |
| C. | Degree of saturation |
| D. | Addition of admixtures |
| Answer» B. Water content | |
| 11. |
The modified compactor test is also known as __________ |
| A. | Standard compactor test |
| B. | AASHO test |
| C. | Dietert test |
| D. | Compaction test |
| Answer» C. Dietert test | |
| 12. |
A line showing the water content dry density relation for the compacted soil is ___________ |
| A. | Zero air voids lines |
| B. | Air-voids line |
| C. | Density line |
| D. | All of the mentioned |
| Answer» C. Density line | |
| 13. |
Which of the following equipment is not used in standard compactor test? |
| A. | Cylindrical metal mould |
| B. | Rammer |
| C. | Circular face plate |
| D. | Collar |
| Answer» D. Collar | |
| 14. |
The air voids line contains ___________ |
| A. | constant percentage air voids |
| B. | water voids |
| C. | varying percentage air voids |
| D. | specific gravity of solids |
| Answer» B. water voids | |
| 15. |
The zero air voids line is also known as ___________ |
| A. | density line |
| B. | saturation line |
| C. | specific gravity line |
| D. | unit weight line |
| Answer» D. unit weight line | |
| 16. |
The zero air void line shows the _________ |
| A. | dry density as a function of water content for soil containing no air voids |
| B. | saturated density as a function of water content |
| C. | partially saturated density as a function of water content |
| D. | dry density as a function of specific gravity |
| Answer» B. saturated density as a function of water content | |
| 17. |
For a line showing the relation between water content and dry density for a constant degree of saturation is __________ |
| A. | \(ρ_d=\frac{G}{1+wG}S\) |
| B. | \(ρ_d=\frac{Gρ_w}{wG}S\) |
| C. | \(ρ_d=\frac{ρ_w S}{1+wG}\) |
| D. | \(ρ_d=\frac{Gρ_w}{1+\frac{wG}{S}}\) |
| Answer» E. | |
| 18. |
The Modified Proctor test was standardised by ____________ |
| A. | IS |
| B. | AASHO |
| C. | ASCE |
| D. | CBR |
| Answer» C. ASCE | |
| 19. |
The free fall height of rammer in Modified Proctor test is __________ inches. |
| A. | 5 |
| B. | 12 |
| C. | 16 |
| D. | 18 |
| Answer» C. 16 | |
| 20. |
The compaction reduces _________ |
| A. | strength |
| B. | stability |
| C. | air voids |
| D. | dry density |
| Answer» D. dry density | |
| 21. |
The maximum bulking of sand occurs at a water content between ___________ |
| A. | 4 to 5 % |
| B. | 2 to 6 % |
| C. | 4 to 8 % |
| D. | 1 to 5 % |
| Answer» B. 2 to 6 % | |
| 22. |
The attainment of maximum density of soil at full saturation is due to __________ |
| A. | Lubrication action |
| B. | Hydrostatic pressure |
| C. | Bulking of sand |
| D. | None of the mentioned |
| Answer» C. Bulking of sand | |
| 23. |
The zero air voids line is established by equation of __________ |
| A. | \(ρ_d=\frac{G}{1+wG}\) |
| B. | \(ρ_d=\frac{Gρ_w}{wG}\) |
| C. | \(ρ_d=\frac{ρ_w}{1+wG}\) |
| D. | \(ρ_d=\frac{Gρ_w}{1+wG}\) |
| Answer» E. | |
| 24. |
Strength of soil sample compacted wet of optimum is influenced by ____________ |
| A. | Compressibility |
| B. | Permeability |
| C. | Manner of compaction |
| D. | Amount of compaction |
| Answer» D. Amount of compaction | |
| 25. |
_______ is a process in which soil particles are artificially rearrange into a close state. |
| A. | Tension |
| B. | Compaction |
| C. | Sway mechanism |
| D. | Consolidation |
| Answer» C. Sway mechanism | |
| 26. |
The energy per volume for Heavy compaction test is ______________ |
| A. | 593 kJ/m³ |
| B. | 2944 kJ/m³ |
| C. | 2674 kJ/m³ |
| D. | kJ/m³ |
| Answer» C. 2674 kJ/m³ | |
| 27. |
In Standard Proctor test, the weight of rammer is ________ |
| A. | 4.5 kg |
| B. | 18 lb |
| C. | 2.5kg |
| D. | 20 lb |
| Answer» D. 20 lb | |
| 28. |
When compacted dry of optimum, the structure of clay is always ___________ |
| A. | Flocculated |
| B. | Dispersed |
| C. | Disoriented |
| D. | Honey comb shaped |
| Answer» B. Dispersed | |
| 29. |
The water content corresponding to the maximum density in compaction curve is called ____________ |
| A. | Water content of compacted soil |
| B. | Optimum water content |
| C. | Air void water content |
| D. | None of the mentioned |
| Answer» C. Air void water content | |
| 30. |
The Standard Proctor test was developed by ________ |
| A. | R.R. Proctor |
| B. | Skempton |
| C. | Darcy |
| D. | Terzaghi |
| Answer» B. Skempton | |
| 31. |
In Dietert test, the cylindrical weight falls through a height of ______ inches. |
| A. | 2 |
| B. | 12 |
| C. | 18 |
| D. | 23 |
| Answer» B. 12 | |
| 32. |
In Jodhpur mini compaction test, the mould has capacity of ________ litre. |
| A. | 0.3 |
| B. | 0.945 |
| C. | 0.5 |
| D. | 0.423 |
| Answer» B. 0.945 | |
| 33. |
The tyre pressures in the smaller rollers are in the order of ____________ |
| A. | 250 kN/m² |
| B. | 400 kN/m² |
| C. | 500 kN/m² |
| D. | 100 kN/m² |
| Answer» B. 400 kN/m² | |
| 34. |
In Jodhpur mini compaction test, the soil is compacted in ______ layers. |
| A. | 1 |
| B. | 2 |
| C. | 5 |
| D. | 3 |
| Answer» C. 5 | |
| 35. |
In Modified Proctor test the number of layers of the soil is compacted is ___________ |
| A. | 1 |
| B. | 2 |
| C. | 5 |
| D. | 3 |
| Answer» D. 3 | |
| 36. |
The weight of rammer in Modified proctor test is ______________ |
| A. | 4.5 kg |
| B. | 2.5 kg |
| C. | 18 lb |
| D. | 22 lb |
| Answer» B. 2.5 kg | |
| 37. |
In Jodhpur mini compaction test, the mould has internal diameter of ________ mm. |
| A. | 79.8 |
| B. | 12.7 |
| C. | 45.72 |
| D. | 101.5 |
| Answer» B. 12.7 | |
| 38. |
In Abbot Compaction test, the internal diameter of the mould is ____________ cm. |
| A. | 2 |
| B. | 3 |
| C. | 5.2 |
| D. | 10.15 |
| Answer» D. 10.15 | |
| 39. |
Higher density and lower optimum water content is easily achieved by _________ |
| A. | Coarse grained soil |
| B. | Fine grained soil |
| C. | Cohesion less soil |
| D. | Saturated soil |
| Answer» B. Fine grained soil | |
| 40. |
What is the maximum dry density for a soil sample having sp. gr. of 2.7 and OMC=16 %? |
| A. | 3.0 g/cm³ |
| B. | 1.88 g/cm³ |
| C. | 0.562 g/cm³ |
| D. | 1.00 g/cm³ |
| Answer» C. 0.562 g/cm³ | |
| 41. |
For same soil, the effect of heavier compaction is to ________ |
| A. | decrease the optimum water content |
| B. | decrease in the maximum dry density |
| C. | decrease in stability |
| D. | decrease in strength |
| Answer» B. decrease in the maximum dry density | |
| 42. |
In Abbot Compaction test, the effective height is ____________ cm. |
| A. | 6 |
| B. | 11.7 |
| C. | 40 |
| D. | 50 |
| Answer» D. 50 | |
| 43. |
The compacted density is increased when the water content of the soil is _________ |
| A. | Increased |
| B. | Decreased |
| C. | Constant |
| D. | None of the mentioned |
| Answer» B. Decreased | |
| 44. |
The number of layers of soil compaction depends on ___________ |
| A. | Type of soil and Amount of compaction required |
| B. | Water content of soil |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Water content of soil | |
| 45. |
The flocculated structure of compacted dry soil is broken due to _____________ |
| A. | High strains |
| B. | Low water content |
| C. | Low strains |
| D. | Dry density |
| Answer» B. Low water content | |
| 46. |
The water content used in field compaction is called _______ |
| A. | optimum water content |
| B. | dry water content |
| C. | placement water content |
| D. | specific water content |
| Answer» D. specific water content | |
| 47. |
In Jodhpur mini compaction test, the mould has effective height of ________ cm. |
| A. | 6 |
| B. | 11.7 |
| C. | 40 |
| D. | 50 |
| Answer» C. 40 | |
| 48. |
In Standard Proctor test, the inside diameter of the mould is ________ inches. |
| A. | 1 |
| B. | 4 |
| C. | 3 |
| D. | 6 |
| Answer» C. 3 | |
| 49. |
If weight of rammer is W, free fall height is h, number of layers is N, number of blows is n, acceleration due to gravity is g and volume as V, then the formula for energy per volume is ______ |
| A. | \(\frac{WhNng}{V} \) |
| B. | \(\frac{WVNng}{h} \) |
| C. | \(\frac{Whng}{N} \) |
| D. | \(\frac{WgN}{hnV} \) |
| Answer» B. \(\frac{WVNng}{h} \) | |
| 50. |
The energy per volume for Modified Proctor test is ______________ |
| A. | 593 kJ/m³ |
| B. | 2944 kJ/m³ |
| C. | 2674 kJ/m³ |
| D. | 4324 kJ/m³ |
| Answer» D. 4324 kJ/m³ | |